Having or showing a sharp or critical quality
Serving to fix a dye to a fibre.
A glutinous size used as a ground for gilding, to make the gold leaf adhere.
Any substance used to facilitate the fixing of a dye to a fibre; usually a metallic compound which reacts with the dye using chelation.
Any corrosive substance used in etching.
To subject to the action of, or imbue with, a mordant.
Resembling or characteristic of a rapier; sharp, piercing.